CN1203270C - Screw connection - Google Patents

Screw connection Download PDF

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Publication number
CN1203270C
CN1203270C CNB018043747A CN01804374A CN1203270C CN 1203270 C CN1203270 C CN 1203270C CN B018043747 A CNB018043747 A CN B018043747A CN 01804374 A CN01804374 A CN 01804374A CN 1203270 C CN1203270 C CN 1203270C
Authority
CN
China
Prior art keywords
ring
face
attachment portion
transferring member
connecting piece
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CNB018043747A
Other languages
Chinese (zh)
Other versions
CN1396996A (en
Inventor
安德烈亚斯·乌德霍弗
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Parker Hannifin GmbH and Co KG
Original Assignee
Parker Hannifin GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7633879&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CN1203270(C) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Parker Hannifin GmbH and Co KG filed Critical Parker Hannifin GmbH and Co KG
Publication of CN1396996A publication Critical patent/CN1396996A/en
Application granted granted Critical
Publication of CN1203270C publication Critical patent/CN1203270C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
    • F16L19/08—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts with metal rings which bite into the wall of the pipe
    • F16L19/10—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts with metal rings which bite into the wall of the pipe the profile of the ring being altered
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L2201/00—Special arrangements for pipe couplings
    • F16L2201/10—Indicators for correct coupling
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/20—Joints and connections with indicator or inspection means

Abstract

The invention relates to a screw connection comprising a seal ring (1), a connecting piece (10), and a union nut (11) for joining pipes, whereby the seal ring is designed as a cutting ring having one or more cutting edges (2, 3). Said cutting ring can be inserted into a boring of the connecting piece, said boring conically exiting a face, by screwing the union nut onto the connecting piece, and the exterior of the seal ring is provided with a ring reinforcement on the side of the nut. Said ring reinforcement forms a ring surface on the transition thereof to the narrow ring part. The ring surface produced by the reinforcing part of the cutting ring is provided with a slope to the pipe axis that ranges from 45 DEG to 90 DEG. When fully assembled, the axial length of the ring reinforcement is such that the transfer elements placed on the ring surface transfer their negative image or themselves onto the face of the connecting piece. The transfer elements have three-dimensionally shaped contours whose negative image can be transferred to the face of the connecting piece. In a manner similar to a die, the negative image is pressed into the face of the connecting piece by the pressing force exerted by the assembler.

Description

Inipple
Technical field
The present invention relates to a kind of screwed connection that is used for tube connector, it has an attachment portion with seal ring and union nut, described seal ring is designed to have the cutting ring of or several blades, by being screwed union nut to the attachment portion, the end face of this cutting ring from the attachment portion can be inserted in the tapered bore of attachment portion, seal ring is provided with a ring-type reinforcer on its nut outside side, this reinforcer has formed an anchor ring at the transition zone place towards narrow and small ring portion.
Background technique
For example disclosed the cutting ring joint that uses cutting ring in DE12 96 901, this cutting ring joint has several blades of arranged in succession vertically.This patent has also disclosed the end of described cutting ring in the nut side, the reinforcing section that has a radial outward to thicken in a segment length of cutting ring axial length.When assembling, by being screwed nut, the cutting ring district is clamp-oned in the tapering part of attachment portion, thereby make blade with respect to pipe box deflection and cut in the pipe box.Ring-type reinforcer on loading nut one side can limit the scope of deflection, thereby can make cutting ring stable.
Disclosed a kind of inipple with cutting ring in DE 33 41 726, described cutting ring has a reinforcer, and this reinforcer is designed to several strengthening rib and is distributed on the circumference.Described strengthening rib radial outward projection is also extended vertically.These strengthening rib have a stop surface that is suitable for the cone shape hole of nut in they ends in the face of nut.In their the other end, the end face of strengthening rib and attachment portion has formed stop surface.As long as the stop surface of appointment arrives its corresponding opposite, the moment that is applied by the assembler can sharply increase, thereby shows that assembly manipulation finishes.
Cutting ring inipple among the DIN3859 in part 2 assembling rules regulation pipe joint only manually be screwed in join tight union nut 1 and 1/2 circle after, just assert to assemble (finishing assembling).But,, just no longer can objective judgement whether correctly carry out these rules through after once dismantling.According to assembling rules, the annular stroke (collar throw-up) of the visual assessment blade to produce.But this assessment is subjective and experience that depend on the assembler all the time.The assembly manipulation of being finished can not be verified on stop surface, and the annular stroke on the pipe box also can not be checked.Even carried out overtightenly, can not clearly be judged by observing stop surface and annular stroke to it.
Summary of the invention
Therefore, the objective of the invention is to provide can objective judgement and any time during the dismounting pipe-line system can both demonstrate the mode of the quality of the assembly manipulation of being finished.
According to the present invention, the solution of this task is: the anchor ring that is formed by the reinforcing section of cutting ring has an axis with respect to pipe to be 45 °-90 ° inclined-plane, and the design of the axial length of ring-type reinforcer is, in case finish assembling, be arranged on the reversed image structure or the end face that himself is transferred to the attachment portion of transferring member on this anchor ring with himself.
According to the present invention, transferring member has the stereochemical structure profile, and its reversed image structure can be transferred on the end face of attachment portion.Similar to coining die, apply extruding force by the assembler described reversed image is stamped in the end face of attachment portion.Make the surface quenching and hardening of cutting ring, make the end face of attachment portion have lower hardness again simultaneously, help this operation, thereby help coining manipulation.
In an embodiment who simplifies, transfer is designed to corrugated element.Undoubtedly, this raised design that can make easily can judge by vision, in addition also stereognosis reliably under the visibility harsh conditions.
In another embodiment of the invention, transferring member is designed to the sign of company.
In another embodiment of the present invention, transferring member has color pigment.Between first erecting stage when forming anchor ring on the end face of cutting ring in the attachment portion, assembling moment sharply increase also is transferred to transferring member on the end face of attachment portion.For the assembler, the rapid increase of assembling moment is exactly the signal that has completed successfully assembling.Simultaneously, when dismantling, can judge the assembling situation of being finished objectively,, corresponding raised design or colour-coded be arranged necessarily on this end face because if first assembling is to finish by the regulation of rules at the end face of attachment portion.
In a kind of scheme of the present invention, also can use a kind of printing transferring method to come the overtighten of display system.In this case, the axial length L of ring-type reinforcer 1Should have such size, promptly only under overtighten situation, be arranged on transferring member on the anchor ring just on the reversed image structure or the end face that himself is transferred to the attachment portion with himself.Therefore, in this embodiment, the axial length L of ring-type reinforcer 1Be designed to be shorter.So, finish assembling and by DIN union nut is being rotated under the situation of 1 and 1/2 circle, the anchor ring of cutting ring can not contact with the end face of attachment portion, only when overtighten, when soon union nut rotated about 1 and 3/4 circle, the anchor ring of cutting ring just can contact with the end face of attachment portion.If assembling is correct, so the ring-type reinforcer L of Suo Duaning 1To have lower rigidity, thereby can stop the transmission of vibration as metal spring.
Description of drawings
Provided detailed description of the invention in the accompanying drawings, wherein:
Fig. 1 shows the half sectional view of a kind of cutting ring of the present invention;
Fig. 2 illustrates decomposition view according to all parts in a kind of inipple of the present invention with the form of half section and full section;
Fig. 3 shows the half sectional view of inipple of the correct assembling of the present invention's first scheme;
Fig. 4 shows the half sectional view of inipple of the correct assembling of alternative plan of the present invention;
Fig. 5 shows the half sectional view of the overtighten inipple of alternative plan of the present invention;
Fig. 6 a and 6b show the side view a and the longitudinal sectional drawing b of the attachment portion with embossed marks,
1. overtighten back state has becate shape reinforcer L 1, and
2. normal assembling back state has long ring-type reinforcer L 1
Embodiment
Fig. 1 shows the vertical part section and the partial view of cutting ring 1 of the present invention, and this cutting ring 1 has the blade 2 and 3 and blade or stop edge 4 of different radii.Being screwed at cutting ring on the outer surface of nut one end has a ring-type reinforcer 5, and this reinforcer 5 is forming an anchor ring 6 to narrow and small loop section transition position.Anchor ring 6 has between 45 ° and 90 ° with respect to the tilt angle of tube axis.In one embodiment of the invention, the axial length L of ring-type reinforcer 1Be such size, promptly finish under the situation of assembling, be arranged on the anchor ring 6 transferring member 8 with himself the reversed image structure or himself be transferred on the end face 9 of attachment portion 10.
Relevant this joint, referring to Fig. 2, this figure shows the decomposition view of all parts of screwed connection of the present invention with vertical part section and partial view form, and 10 refer to the attachment portion, and 1 is cutting ring, and 11 is union nut, 12 is connected pipe.
Fig. 3 shows these parts in correct assembled position.Behind hand-tight make-up, after soon union nut 11 rotated 1 and 1/2 circle, described union nut acted on the inclined-plane that has counter structure in the cutting ring 1 by its internal surface 13, contacts with the end face 9 of attachment portion 10 by its anchor ring 6.So just, transferring member 8 is pressed in the softer end face 9 of attachment portion, and realizes that its reversed image is shaped.If the dismounting screwed connection, then the image on end face 9 will show that the original assembling of this screwed connection is correct.
Fig. 4 shows an alternative embodiment of the invention, be not to verify correct assembling condition with mark in this embodiment, but verify by the raised design that has formed on the end face of attachment portion 10, but checking is overtighten.For this purpose, under the condition of the equal axial length L that keeps cutting ring 1, shorten the length L of annular reinforcing section in this manner 1, promptly be under the correct installment state at pipe jointer, anchor ring 6 can not be contacted with the end face 9 of attachment portion 10 with appearance profile or the transferring member 8 of oneself, thereby also can not produce raised design.Only when overtighten, when promptly in a single day union nut approximately being screwed 1 and 3/4 circle, the extruding force from anchor ring 6 is acted on the end face 9 of attachment portion 10, thereby form the raised design of end face, and then judgement taken place overtighten whereby.Figure 5 illustrates this state.
Fig. 6 a and 6b have provided the example explanation of the mark 14 on the end face edge of attachment portion 10, and this mark 14 is used to carry out following judgement:
1. by becate shape reinforcer L 1Judge overtighten, and
2. by long ring-type reinforcer L 1Judge normal assembling.
Vocabulary
The 1-cutting ring
The 2-blade
The 3-blade
4-blade or stop edge
5-annular reinforcing section
The 6-anchor ring
The 7-tube's axis
The 8-transferring member
9-attachment portion end face
The 10-attachment portion
The 11-union nut
The 12-pipe
The 13-cone-shaped inner surface
The end face edge of 14-attachment portion 10

Claims (7)

1. screwed connection that is used for tube connector, it comprises the attachment portion, seal ring and union nut, described seal ring is designed to have the cutting ring of one or more blades, by union nut is screwedly mounted on the attachment portion, the end face of this cutting ring from the attachment portion can be inserted in the tapered bore of attachment portion, and seal ring is provided with a ring-type reinforcer on its nut outside side, this reinforcer is forming an anchor ring from narrow and small ring portion to the transition zone of the reinforcing section of anchor ring, it is characterized in that: anchor ring (6) has the angle of cut between 45 ° to 90 ° and the axial length L of ring-type reinforcer (5) with respect to tube axis (7) 1Design make under the situation of correct assembling, be arranged on the anchor ring (6) transferring member (8) with himself the reversed image structure or himself be transferred on the end face (9) of attachment portion (10).
2. screwed connection according to claim 1 is characterized in that: transferring member (8) has the profile of three-dimensional design, and the reversed image structure of this profile can be transferred on the end face (9) of attachment portion (10).
3. screwed connection according to claim 1 and 2 is characterized in that: transferring member (8) is designed to raised design.
4. screwed connection according to claim 1 and 2 is characterized in that: transferring member (8) is designed to corrugated element.
5. screwed connection according to claim 1 and 2 is characterized in that: transferring member (8) is designed to corporate logo.
6. screwed connection according to claim 1 and 2 is characterized in that: transferring member (8) has color pigment.
7. screwed connection according to claim 1 is characterized in that: the axial length L of ring-type reinforcer (5) 1Have such size, promptly only under overtighten situation, be arranged on transferring member (8) on the anchor ring (6) can reversed image structure or the end face that himself is transferred to the attachment portion with himself on.
CNB018043747A 2000-03-07 2001-03-03 Screw connection Expired - Fee Related CN1203270C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10011146A DE10011146A1 (en) 2000-03-07 2000-03-07 Pipe connection system comprises connector, union nut and compression ring which is locked into a conical bore in the connector by union nut, face of ring which faces nut having reinforcement consisting of narrow sections of ring
DE10011146.7 2000-03-07

Publications (2)

Publication Number Publication Date
CN1396996A CN1396996A (en) 2003-02-12
CN1203270C true CN1203270C (en) 2005-05-25

Family

ID=7633879

Family Applications (1)

Application Number Title Priority Date Filing Date
CNB018043747A Expired - Fee Related CN1203270C (en) 2000-03-07 2001-03-03 Screw connection

Country Status (15)

Country Link
US (1) US6641180B2 (en)
EP (1) EP1287282B1 (en)
JP (1) JP3678704B2 (en)
KR (1) KR100580993B1 (en)
CN (1) CN1203270C (en)
AT (1) ATE282171T1 (en)
AU (2) AU2001246367B2 (en)
BR (1) BR0107949A (en)
CA (1) CA2400675C (en)
CZ (1) CZ299753B6 (en)
DE (3) DE10011146A1 (en)
ES (1) ES2232607T3 (en)
NO (1) NO20024260D0 (en)
NZ (1) NZ520100A (en)
WO (1) WO2001066989A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10011146A1 (en) 2000-03-07 2001-09-27 Parker Hannifin Gmbh Pipe connection system comprises connector, union nut and compression ring which is locked into a conical bore in the connector by union nut, face of ring which faces nut having reinforcement consisting of narrow sections of ring
US7407196B2 (en) 2003-08-06 2008-08-05 Swagelok Company Tube fitting with separable tube gripping device
US20050035594A1 (en) * 2003-08-13 2005-02-17 Kiely Kenneth M. Weatherproof compression connecting assembly for securing electrical metal tubing
US20050035593A1 (en) 2003-08-13 2005-02-17 Delbert Auray Electrical connection assembly with unitary sealing and compression ring
US7390027B2 (en) * 2003-08-13 2008-06-24 Bridgeport Fittings, Inc. Weatherproof compression connecting assembly for securing electrical metal tubing
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WO2009020900A2 (en) 2007-08-03 2009-02-12 Swagelok Company Pull-up by torque ferrule fitting
JP5202555B2 (en) * 2010-02-18 2013-06-05 Ｃｋｄ株式会社 Port structure and fluid device having port structure
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US9343883B2 (en) 2013-03-14 2016-05-17 Bridgeport Fittings, Inc. Raintight compression connector and raintight compression coupler for securing electrical metallic tubing or rigid metallic conduit
US9787070B2 (en) 2013-10-31 2017-10-10 Bridgeport Fittings, Inc. Raintight compression connector and raintight compression coupler for securing electrical metallic tubing or rigid metallic conduit
US10240694B2 (en) 2013-10-31 2019-03-26 Bridgeport Fittings, Inc. Co-molded sealing ring for use in an electrical fitting, and a raintight compression connector and raintight compression coupler incorporating a co-molded sealing ring
USD787648S1 (en) 2013-10-31 2017-05-23 Bridgeport Fittings, Inc. Raintight fitting connector body
KR102398921B1 (en) 2014-05-09 2022-05-16 스와겔로크 컴패니 Conduit fitting with components adapted for facilitating assembly
WO2015187958A1 (en) 2014-06-04 2015-12-10 Parker-Hannifin Corporation Compression fitting with torque nut
KR20180112824A (en) 2016-02-09 2018-10-12 스와겔로크 컴패니 Ferrule for conduit fitting
KR102351742B1 (en) 2016-03-23 2022-01-14 스웨이지락 캄파니 Conduit Fittings with Stroke Resistance Features
DK3364086T3 (en) * 2017-02-20 2019-04-23 Walter Stauffenberg Gmbh & Co Kg Connection arrangement for connecting a pipeline
CN107477278A (en) * 2017-08-17 2017-12-15 海盐管件制造有限公司 Compound seal pipe joint and method and purposes
WO2019210016A1 (en) 2018-04-27 2019-10-31 Swagelok Company Ferrule assembly for conduit fitting
CN112728235A (en) * 2020-12-29 2021-04-30 长春中车轨道车辆有限公司 Construction method for preventing leakage of rubber gasket sealing part of brake pipe system

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Also Published As

Publication number Publication date
WO2001066989A1 (en) 2001-09-13
KR100580993B1 (en) 2006-05-17
EP1287282B1 (en) 2004-11-10
JP3678704B2 (en) 2005-08-03
AU2001246367B2 (en) 2006-05-25
CA2400675C (en) 2008-08-19
AU4636701A (en) 2001-09-17
CN1396996A (en) 2003-02-12
NO20024260L (en) 2002-09-06
DE10190859D2 (en) 2003-04-03
US6641180B2 (en) 2003-11-04
KR20020093787A (en) 2002-12-16
BR0107949A (en) 2002-10-22
NO20024260D0 (en) 2002-09-06
CZ20022374A3 (en) 2003-01-15
ATE282171T1 (en) 2004-11-15
JP2003526064A (en) 2003-09-02
CA2400675A1 (en) 2001-09-13
ES2232607T3 (en) 2005-06-01
DE10011146A1 (en) 2001-09-27
CZ299753B6 (en) 2008-11-12
US20030020278A1 (en) 2003-01-30
EP1287282A1 (en) 2003-03-05
DE50104490D1 (en) 2004-12-16
NZ520100A (en) 2006-06-30

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Granted publication date: 20050525

Termination date: 20120303